* {
    margin: 0;
    padding: 0;
}

header {
    width: 100%;
    height: 40px;
    background-color: #108881;
}

header section {
    width: 990px;
    height: 40px;
    line-height: 40px;
    text-align: center;
}

input {
    margin-left: 100px;
    width: 300px;
    line-height: 30px;
    outline: none;
}

div {
    background-color: #ddd;
    text-align: center;
}

div section {
    position: relative;
    width: 990px;
    text-align: center;
    vertical-align: center;
}
span {
    display: inline-block;
    position: absolute;
    right: 0;
    width: 20px;
    height: 20px;
    border: 1px solid #108881;
    border-radius: 12px;

}
h2 {
    height: 40px;
    line-height: 40px;
}
footer {
    margin: 10px auto;
    text-align: center;
}
